Specifications

B-7

B Buep 19-Expander driver

P3: General error message (bit, here A0.0)

The P3 general fault bit is set for any error in the connection between

the programmable controller and the PCS. This bit is automatically

reset as soon as the communication is running without a fault.

P4: Flag for the first processing of the handling block (bit, here

M20.0)

This flag should be reset before the first call of the handling block. At

the first execution, it is automatically set to 1.

P5: Flag bit for appeared timeout faults (here: M20.2)

P6: Time value for timeout monitoring (refer also to 1.4.3). Structure:

e.g. K2.2 = 2 seconds timeout

multiplication element 1 = 100 ms, 2 = 1 s

value

P7: Name of the used timer for timeout (here: T15)

P8: Flag bit for waiting for the first order (here: M20.1)

TRANSDB is the data block containing the send and receive buffers.

Must be 64 words in length. PCSDB is the information interchange

data block between the PCS and the programmable controller. Must

be 255 words in length.

B1.3 Implementation of the software

The README.DOC file on the PCS 91.BOS floppy disk contains current

notes concerning the use of the various projects.

The 200.0-213.7 flags are used as temporary flags by the communication

program. They may also be used by other programs as temporary flags.

The P7 timeout timer (here: T15) and the flags P4, P5 and P8 (here:

M20.0-M20.2) must not be used by other programs.

Implementation of the PLC software

• Equip the rack

• Set the digital I/O boards to address 0 (for this set all DILs to OFF)

• Copy the corresponding project stored on the PCS 91.BOS floppy

disk to the hard disk

• Supply voltage to the programmable controller

• Transfer the programmable controller program into the controller using

the loader (if necessary, link in your application program, correct the

configuration and link newly)

• Turn off power to the programmable controller (important!), remove

the programming cable, set the programmable controller interface

parameters (refer to 2.4), turn on power to the programmable

controller and set the mode switch to RUN

• Connect the PCS and the programmable controller using an comm-

unications cable described in sections 3 (are DIL-switch segments

5 and 6 at the PCS correspondingly set).

• Apply 24 volts for a short-term to input E0.0 (Precondition: 24 V

input module).